ASTROSAT CZTI

Data Quality Report

Orbit 03703

Creation date: 2024-06-27T14:32:36.929449
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_009T01_9000000482_03703cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03703cztM0_level2_quad_clean.evt
Size (bytes)564,600,96055,298,880
Size538.4 MB 52.7 MB
Events in quadrant A6,282,054309,241
Events in quadrant B3,861,042312,212
Events in quadrant C3,107,191307,830
Events in quadrant D3,414,465298,054

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227913
B0153762
C0135042
D0143582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6394138021.582734%
B63941412.205192%
C6394641.000938%
D6394661.032218%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7574 6395 1229 1229 16.23% 19.22%
B 7574 6395 60 60 0.79% 0.94%
C 7574 6395 18 18 0.24% 0.28%
D 7574 6395 43 43 0.57% 0.67%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 251 3615774 25565.39 690 676 141.4
A 0 226 7187 46.04 690 676 141.4
A 12 194 7077 45.27 690 676 141.4
B 14 167 292605 1903.04 794 775 153.3
B 15 204 184094 1195.43 794 775 153.3
B 5 70 183613 1192.29 794 775 153.3
C 9 247 41133 230.25 755 761 175.3
C 8 208 39863 223.01 755 761 175.3
C 7 239 23644 130.51 755 761 175.3
D 1 84 150426 826.86 749 726 181.0
D 13 223 130103 714.61 749 726 181.0
D 10 187 99382 544.92 749 726 181.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
Veto Counter